Projecting apparatus



March 9, 194-3. NE T 2,313,450 PROJECT-ING APPARATUS Filed July 17, 1941 7 Sheets-Sheet l Inventor A /5A 0025 I'LL/5 /VF7,'

' Attorney March 9, 1943; NEFT 2,313,450

PROJECTING APPARATUS Filed July 17, 1941 A '7 Sheets-Sheet 2 Inventar fsAoo/es [LL/$7 M's-F7;

March 9, 1943. r l. ENEFT 2,313,450

PROJECTING APPARATUS Filed July 17, 1941 7 Sheets-Sheet 3 Inventor jS/IOORE ILL/5 /VEF7,

March 9, 1943. L E. NEFT 2,313,450

PROJECTING APPARATUS Filed July 1, 1941 7 Sheets-sheet 4 Im/en tor A Home 7 March 9, 1943.

. jf yja l. E. NEFT PROJEGTING APPARATUS Filed July 17, 1941 7 Sheets-Sheet 5 'fsAuoksflz/s NEFT,

Attorney March 9, 1943.

1. E. NEFT 2,313,450

PROJECTING APPARATUS Filed Jul 'l'r, 1941 7 Sheets-Sheet 6 Inventor A Home 1 March 9, 1943. l. E. NEFT PROJECTING'APPARATUS Filed July 17, 1941 '7 SheetseSheet '7 Inventor J24 0025 ELL/5 A/m;

A tto rue Patented Mar. 9, 1943 UNlTED STATES PATENT OFFICE raomormd APPARATUS Isadore Ellis Neft, Los Angeles, Calif. Application July 17, 1941, Serial No. 402,819 Claims. (01. 88-28) vertisement may be also shown and further the device may be employed for projecting illustrative information on the screen while a person is giving a lecture and may be employed for many other purposes.

With these and other objects in view as will become more apparent as the description proceeds, theinvention consists in certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following (16-.- scription and accompanying drawings, in which Figure 1 is a fragmentary vertical sectional view illustrating a portion of a vehicle and showing the application of the invention thereto.

Figure 2 is a sectional view taken on the line 22 of Figure 1.

Figure 3 is a vertical sectional view illustrating the projecting apparatus.

Figure 4 is a. transverse sectional view taken on the line 4-4 of Figure 3.

Figure 5 is a transverse sectional view taken on the line 5-5 of Figure 3.

Figure 6 is a fragmentary perspective view illustrating one of thefilm holders and its mounting upona portion of an endless belt or carrier.

Figure 7 is a detail sectional view illustrating a portion of the operating means for imparting a step by step movement to the endless carrier or belt.

Figure 8 is a. front elevation illustrating another portion of the operating mechanism including an indicatingmeans for showing to the operator the same matter appearing on thescreen by the projecting apparatus.

Figure 9 is a side elevation illustrating theoperating device shown in Figure 8.

Figure 10 is a transverse sectional view of the operating mechanism shown in Figures 8 and 9. Figure 11 is an end elevation illustrating the screen on the casing.

Figure 12 is avertical sectional view illustrating a modified form of my invention.

Figure 13 is a fragmentary perspective view illustrating one .of the data carrying members character 6.. The

meral 5 indicates 'to shine upon and a portion of the carrier employed in the modified form of-my invention.

Figure 14 is a fragmentary longitudinal sectional view illustrating the modified form of my invention.

Figure 15 is a fragmentary vertical" sectional view, illustrating another modified form of my invention.

Figurel6 is a sectional view, taken on the line l6 l6 of Figure 15.

Figure 17 is a transverse sectional view taken on the line l1-I I of Figure 16. I

Figure 18 is a fragmentary top plan view of the carrier.

Figure 19 is a vertical sectional view, showing one of the channel members of the carrier and the film frame pivoted therein.

Refening in detail to.-the drawings, the nua fragmentary portion of a public vehicle in which the present invention is mounted and is designated in entirety by the invention is arranged in the vehicle so that the screen 1 thereof 'may be conveniently viewed by the passengers within the vehicle. As to the exact location of the invention 6 in the vehicle this is immaterial as long as it can be conveniently actuated by the operator of the vehicle and the screen viewed by the passengers.

A substantially 'L-shaped casing 8 is mounted in the vehicle 5 by a bracket 9 and is provided with a projector housing l0 thereon and which is in direct communication with the interior of the casing 8 by an opening II.

The housing I0 supports a projector l2 of any well known construction and the housing opposite the projector or lens thereof is equipped with a light opening I 3 to permit the light rays from the projector I 2 thescreen I mounted on the casing 8.

A lens fixture [4 may be mounted in the light opening l3, if desired, for focussing the light rays on the screen-1. 4

A plurality of rollers I5 is mounted in the easing 8 for the support of an endless belt or carrier l6. The purpose of constructing the casing 8 of L shape isto accccrmnodate a carrier or belt and removed from the frames ing the movement of the direction. This movement-of the belt or car- The carrier or belt is preferably constructed of double thicknesses or superimposed layers of material and the outermost layer at spaced intervals of the belt or'carrier is provided with loop portions ll through which are extended rods I8 arranged transversely of the belt or carrier with the ends thereof projecting a considerable distance beyond the longitudinal edges of the belt or carrier. The ends of the rods which are of hollow formation are cut away, as shown at l9, to permit inserting in said ends angularly related ends 25 of spring arms 2| connected with film supporting frames 22. The frames 22 are so constructed as to clearly exposeathe matter on the films to the rays of light 'from the proiecting device l2 and permit the rays of lightto pass through the film onto the screen displayin on the screen the matter or information on the films. I The frames are of channel construction open at one end to permit the films to be placed in as desired;

By referring to Figure 6 it will be seen that the film may bear the name of a street and also selected advertising matter or if the device is to be used for lecture purposes the film may have illustrative matter of the lecture thereon.

Coil springs 23 are connected to the spring arms 2| and to the belt or carrier acting to urge the frames 22 into position at right angles to thebelt or carrier when freed of the walls of the casing.v The opening II in the casing is to permit one frame at a time to enter the housin l and take a position opposite the light opening l3 so that the rays of light from the projecting device 12 can'shine through the film of the frame.

By referring to Figure 3'it will be seen that the walls of the ,opening II are inclined which will permit the frame to gradually enter the housing l0 and to again return into the casing as the belt or carrier is advanced. The advancement of the belt or carrier is in a step by step movement through a manually actuated operating mechanism 24. The operating mechanism 24 includes a slide 25 mounted in an offset 25 of the casing and which offset is provided with a slot 21 to permit an extension 28 to slide endwlse of the horizontal portion of the casing. The slide 25 carries upstanding arms 29 to which are pivoted spring influenced hooks 30 capable of pivoting in one direction for the purpose of allowing the hooks 30 to ratchet past the ends of the rods l when the slide 25 moves to the right in Figure 3 under the influence of a spring 5|. As soon as the hooks 30 pass a rod they assume a position to contact the rodand bring about a movement of the belt or carrier for a limited distance durslide 25 in an opposite rier is sufilcient to move the frame out of the housing l0 into the casing and to permit the following frame to enterand take the position of the preceding frame within the housing.

A flexible element 33 is connected to the extension and enters a housing 34 after passing position it engages the lever to move free of the shaft 31 when moving upwardly.

A shaft 39 is also located in the housing 34 and the shafts have mounted thereon drums 40 on which is wound a web or belt'4l adapted to pass over guide rollers 4| in rear of a sight opening 42. The shaft 21 is journaled in the housing 34 and has its drum fixed thereto in any well known manner while the shaft 39 may be rotatable or non-rotatable and if non-rotatable in the housing the drum thereon will be rotatable relative to said shaft 39. The apron or belt 4| bears the same information as the various films on the carrier or belt I5 and whenever a certain name or information is on display the same will appear in the sight opening 42.

It is most preferable that the drum 40 on the shaft 35 be fixed thereto so that the shaft 59 can be rotated by a finger piece 44 arranged exteriorly of the housing 54 for rewinding onto the drum of the shaft 29 the belt after all of the filmson belt or carrier have been displayed.

when the lever 35 is moved to its lowermost a circuit closer 45 of an electric circuit 45 for alarm 41 for the purpose of attracting the passengers attention to the matter being displayed.

Thus it will be seen that the operator of the vehicle on approaching a street can, through the actuation of the lever 35, bring the film bearing the name of the street in position to be projected on the screen 1 and at the same time an alarm will be given to attract the passengers attention thereto.

While I have principally described the use of this invention in a vehicle it is to be understood that it can be used for many other purposes- When it is desired to remove any one of the film frames from the belt orrcarrier, it is only necessary tounfasten the springs attached to the spring arms thereof and move the angularly related ends of said arms out of the ends of the rods. Of course, to accomplish this the housing It must be removed from the casing. The purpose of removing a frame is to permit the film to be replaced by another.

Referring in detail to the modifiedform of my invention as shown in Figures 12 to 14, inclusive, an elongated housing 48 is provided and one end wall thereof carries a lens mechanism 49 opposite a screen 50. A projecting device 5| is mounted in the housing 48 so that the rays of light therefrom may pass through the lens mechanism 49 onto the screen 55.

Also located in the housing 45 is an endless track 52 engaged by a series of rollers 53 over over a guide pulley 35 and is connected to an operating lever 35 journaled on a shaft 31 located in the housing 34. A ratchet mechanism 38 is provided between the lever 35 and the shaft 31 for the purpose of rotating the shaft on movement of the lever tion when referring to the 35 in a downward direc- Figure 7 and to permit" which is supported an endless carrier 54 including a plurality of pivotally connected blocks 55 provided with slots 55 to removably receive the headed ends of supporting rods 51 carrying film frames 58. The blocks 55 are further provided with projections 59 to be engaged by the hooks of the operating mechanism 24. As the carrier 54 is advanced in a step by step movement the various films will \be brought into position between the projector and the lens mechanism 45 so that the matter on the films will be displayed on the screen 50.

Referring to my modified form of the invention as shown in Figures 15 to 19, inclusive, a casing is provided in which is mounted an endless carrier 5| similar to the carrier 54 and the casing includes an opening 52 over which is formed a housing 63. The housing accommodates the projecting device as well as having the lens carrythe purpose of actuating an ing lugs 65 to be engaged by the hooks of the I operating means. Supporting rods 64' are pivotally mounted within the channel members and are spring influenced,

as shown at 61, to normallyassume a position extending outwardly, of said channeled members and thereby move into position of placing the film frames 88 thereof in the path of the rays of light from the projecting'device. Normally the film frames and the supporting rods thereof lie within the channeled members and are releasably retained thereinby pivoted latch members 68 engaging keepers 69 on the film frames. The latch members 68 are spring influenced to sustain them in latching position against stops I0. g

When the film frames lie within the channeled members they are in their inoperative position and also maintain this position when traveling in the casing, consequently permitting the casing to be constructed much lower than the form of my invention shown in Figure 12. When the channeled members move below the opening 62 a trip member 12 engages the latch members freeing the film frames to assume operative position, that is, extending through the opening into the housing 63 and thereby position the films in the path of the rays of light from the projecting device. It is to be understood that the film frames move into operative position one at a time as the.

carrier is advanced in a step by step movement as heretofore described.

The trip member 12 is formed on the casing in such a position to actuate the latches'just before the channeled members assume a position under the opening 62 of the housing 63.

The casing 60 is provided with a cam 13, the

made without departing from the spirit and scope of the invention as claimed. g

Having thus described the--invention, what-I claimis:

1. In aprojecting apparatus, a casing, fa'projecting device carried by said casing,- a screen positioned in the range of said projecting device, an endless carrier carried by said casing, a plurality of film frames onsaid carrier and movable one at a time thereby within the range of the projecting device-and the screen, films'be'aring display matter mounted in said frames,"means for operating said carrier and comprising a manually operated slide, a pivoted hook carried by the slide and engaging a part of thecarrier upon operation of the slide inQone directionito move the carrier in a step-by-step movement and a telltale display meansaoperated by said first means to inform the operator'of the display matter pro- ,jected on the screen. V

purpose of which is to engage the film frames and swing them downwardly in their respective channeled members to assume inoperative position as they move from an operative position within rays of light from the projecting device.

While the casing and housing 63 are shown in a general way in Figures 15 and 16, it is to be understood that the casing and housing are of such a construction that access to the interior thereof can be readily had when desired. This can be easily accomplished by constructing these parts of sections and detachably connecting them.

In the form of my invention shown in Figures 1 to .4, inclusive, the film frames may be caused to assume operative positions within the housing It! by gravitation eliminating the use of the springs 23 by reversing the location of the housing III on the casing, that is, placing the housing III on .the under side of said casing as well as the opening. Then the film frames may assume operative positions by gravitation through the opening into the housing l0 and to be returned to inoperative positions when advanced with the belt or carrier; Of course, in this instance the casing 8 would be of elongated formation instead of L-shape as previously described. Also, it will be understood that the screen I would be located on the under side of the casing 8. a

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be 2. In a projecting apparatus, a casing, a projecting device carried by said casing, a screen positioned in the range of said projecting device, an endless carrier carried by said casing, a plurality offllm frames on said carrier and movableone at a, time thereby within the range of the projecting device and the screen, films bearing display matter mounted in said frames, means for operating said carrier and comprising a manually operated slide, a pivoted hook carried by the slide and engaging a part of the carrier upon operation of the slide in one direction to move the carrier in a step-by-step movement, a telltale display means'operated by said first means to inform the operator of the display matter projected on the screen, and an alarm means actuated by said first means on each operation thereof.

3. In a projecting apparatus, a casing having an opening, a housing overlying said opening, a,

projecting device carried by said housing, a screen within the range of the projecting device, an' endless carrier'mounted in said casing, rods carried by said carrier and mounted for hinging movement thereon, spring arms removably engaged with the ends of said rods, frames carried by said spring arms, films in said frames-and removable therefrom, spring means connected to said arms for urging said arms into position of placing the films and frames one at a time within the housing within range to the projecting device -.on the movement of the carrier, and means for impartinga step by step movement to the car rier.

4. In a projecting apparatus, a casing having an opening, a housing overlying said opening, a

projecting device carried by said housing, a screen within the range of the projecting device, anendless carrier mot nted in said casing,. rods carried by said carrier and mounted for hinging movement thereon, spring arms removably engaged with the ends of said rods, frames carried by said spring arms, films in said frames and removable therefrom, spring means connected to said arms for urging said arms into position of placing the films and frames one at a time within the housing within the range of the projecting device on the movement of the carrier, a slide slidably mounted in said casing, members on said slide, and spring infiuencedhooks pivoted on said members to engage the rods on movement, of the slide in one direction and to ratchetoversaid rods on movement of theislide in'a reversedirection, spring means acting to urge the slide in the latternamed direction, and an operating means connected to the slide.

5. In a projecting apparatus, a casing having anopenlng, a housing overlying said opening, a projecting device carried 'by said housing, a screen within the range of the projecting device, an endless carrier mounted in saidicasing, rods carried by said carrier and mounted for hinging movement thereon, spring arms removably engaged with the ends of said. rods, frames carried by said spring arms, fllms in said frames'and removabletherefrom, spring means connected to said arms for urging said arms into position'of placing the fllms and frames one at a time within the housing within range of the projectingdevice on the movement of the carrier, a slide slidably mounted in said casing, members on said slide, spring influenced hooks pivoted on said 15 thereon and movable members to engage the rods on movement of the slide in one direction and to ratchet over said rods on movement ofthe slide in a reverse direction, spring means acting to urge the slide in the latter-named direction, a flexible element connected to the slide, a hand lever connected to the flexible element, a shaft rotatably supporting the lever, a. housing supporting said shaft, a ratchet mechanism between the lever and the shaft, a second shaft in the second-named housing, said secondnamed housing having a sight opening, an apron bearing thedata of the films-movable relative to the sight opening by the operation of the lever, drums on said shafts and having the apron wound from one drum to another. ISADORE ELLIS NEFT. 

